Ghanas IP Network TransformationThe Vodafone Story

21 April, 2011Mawuli Amoa, Vodafone Ghana

Content

VF Ghana Where we were

Network Evolution

Where we are now Where we are now

Where were we?

Where we were - IP Services

Since conception of Vodafone as an ISP, following services have been offered:

ADSL (up to 4Mbps)

Dedicated internet (leased line)

L2/L3 VPN services

Dialup internet

Email, web hosting Email, web hosting

GPRS/EDGE

Services were offered over legacy MPLS network: limited capacity, limited coverage.

Internet uplink capacity was in order of STM-1s & STM-4s.

Legacy MPLS

Limited IP Core coverage, 23 sites

NxE1 - 1GE Core Capacity

Non-existent or reduced transmission

redundancy

Primarily built for data transport

Internet uplink exhausted

4/22/2011

Internet uplink exhausted

Network Evolution

Network Evolution Strategy

MSS

Internet

HeadendIPMPLS

DSLAM/OLT/

MSAN

Switch

FMC Metro

SR

MSCG/BRAS

Business/VPN

Residential/Tri-Play

POP

P

PE

P

P

P

PPE

PE

PE

PE

PE

PE

In line with group strategy of Fixed/Mobile convergence

Also driven by demand for more BW from our customers (dialup usage

dwindling, higher demand for ADSL)

Required a refresh of VF IP core network.

SGSN/GGSN

BTS/NodeB

RNC/BSC

Mobile

CSG

PTN RSG

CX/PTN

PEPE

Where we are

New MPLS

Extended IP Core coverage, 42 sites

10GE Core Capacity

Full transmission redundancy

Transport for both voice and data

Internet uplink capacity 2xSTM-16

4/22/2011

Highlights

New MPLS network built atop a resilient DWDM transmission network.

Resilient: protection in most part of network + FRR in MPLS layer => always on

services.

Core is 10G based dual ring through major regional capitals.

Ease of upgrade to 40G.

Fixed Network Transformation

Aimed at meeting both residential and corporate needs.

Allows for placement of service nodes closer to customer: shorter copper spans

=> higher ADSL throughput.

Can offer up to 8Mbps ADSL.

Metro fiber networks with GPON technology enable serving of high BW to

enterprise customers over fiber.enterprise customers over fiber.

Optical Access Network

Core

Tra

nsport

SD

H /

IP M

PLS

MSAN

S.C

OLT

AN

AN

xDSL2

xDSL

FTTCab

FTTN

Service NodesCore layer

Customer Premises Access Layer

NT

CO

MSAN

Soft switch

CO

Core

Tra

nsport

SD

H /

IP M

PLS

AN

xDSL2

Fiber

Fiber

FTTB

AN Access Node Function Unit (MSAN, OLT,)

NT Network Termination (FE/ GbE to customer)

Fiber optical fiber OLT Optical Line Terminal

CO Central Office

Cab Street Cabinet / technical space

Optical Network

infrastructure

Fibre

copper

NT

NT

NT

AN

AN FTTM

BSC

RNC

Bring the services to the customer

Wide Coverage

New IP Core network almost doubles points of presence from 23 to 42.

PoPs available in major border towns (Aflao, Elubo, Bawku) can serve as transit

AS to deliver high BW uplinks to ASes in landlocked neighbors.

Reach of network extended through metro fiber networks and packet radios

can deliver Ethernet literally to your doorstep!

New Services

ADSL (more reliable, BRAS pooling technology)

Continue to provide business VPNs & leased lines more BW, more locations.

3G (coming soon)

Enhanced IP services hosted in redundant state-of-the art data center.

NGN, and accompanying services.

Thank You!Thank You!

Harry Newlands